Seamaster Diver 300M family · 6 references Omega

Seamaster Diver 300M Chronograph 9900

Name: Omega Seamaster Diver 300M Chronograph 9900
Brand: Omega
Availability: InStock

44mm

Low $5,694

Median $6,216

High $7,387

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The Seamaster Diver 300M Chronograph brings the collection’s wave dial and skeleton hands to a bigger, busier watch, without losing the family resemblance. Its best detail is the chronograph display at three: elapsed hours and minutes share one counter, so you read a duration much like you read the time.

Introduced in 2019, this generation pairs a ceramic dial with Omega’s Master Chronometer-certified 9900, making it a distinctly modern alternative to earlier Seamaster chronographs. For the familiar blue-dial look on a steel bracelet, 210.30.44.51.03.001 is a useful reference to know. The buying decision is as much about proportions as color: at 44mm, with a substantial automatic chronograph movement inside, this is no slender diver. Try it on with attention to case height and how the bracelet sits beneath your wrist; those matter more here than the diameter alone.

MovementAutomatic

Caliber9900

Case Size44mm

Water Resistance300m

What owners love

The chronograph’s elapsed hours and minutes share the subdial at 3 o’clock, so you read it like a little clock rather than adding up separate counters. It’s a particularly satisfying detail if you actually use the chronograph for longer stretches.
The ceramic wave dial changes noticeably with the light: the waves can look quite subdued, then suddenly become sharply defined. That shifting appearance gives owners something to enjoy beyond the initial impression of a big, busy dive watch.

Common Criticisms

The thickness is the recurring sticking point: this is a tall, substantial watch even by the standards of the regular Diver 300M. Owners who enjoy its presence still acknowledge that it can catch on cuffs, and the bracelet version puts a noticeable amount of weight on the wrist.

Seamaster Diver 300M Chronograph 9900

What owners love

Common Criticisms

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